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module/accel/dpdk_compressdev: change device_qp association

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From an earlier comment on the original patch that introduced the
module.  Stop using the thread to associate the device_qp and
simply link it into the chan.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ib55979247d9bdacdc868bdb9dea97e1941e1e8ab
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15832
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
This commit is contained in:
paul luse 2022-12-08 16:59:02 -07:00 committed by Tomasz Zawadzki
parent 976f8b0992
commit 8222c5bae3
1 changed files with 20 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
module/accel/dpdk_compressdev/accel_dpdk_compressdev.c
View File

@ -62,7 +62,7 @@ static TAILQ_HEAD(, compress_dev) g_compress_devs = TAILQ_HEAD_INITIALIZER(g_com
struct comp_device_qp {
struct compress_dev *device; /* ptr to compression device */
uint8_t qp; /* queue pair for this node */
struct spdk_thread *thread; /* thread that this qp is assigned to */
struct compress_io_channel *chan;
TAILQ_ENTRY(comp_device_qp) link;
};
static TAILQ_HEAD(, comp_device_qp) g_comp_device_qp = TAILQ_HEAD_INITIALIZER(g_comp_device_qp);
@ -218,7 +218,7 @@ create_compress_dev(uint8_t index)
}
dev_qp->device = device;
dev_qp->qp = i;
dev_qp->thread = NULL;
dev_qp->chan = NULL;
TAILQ_INSERT_TAIL(&g_comp_device_qp, dev_qp, link);
}
@ -759,13 +759,12 @@ compress_create_cb(void *io_device, void *ctx_buf)
chan->poller = SPDK_POLLER_REGISTER(comp_dev_poller, chan, 0);
TAILQ_INIT(&chan->queued_tasks);
/* TODO: consider associating device_qp with chan as opposed to thread */
pthread_mutex_lock(&g_comp_device_qp_lock);
TAILQ_FOREACH(device_qp, &g_comp_device_qp, link) {
if (strcmp(device_qp->device->cdev_info.driver_name, chan->drv_name) == 0) {
if (device_qp->thread == NULL) {
if (device_qp->chan == NULL) {
chan->device_qp = device_qp;
device_qp->thread = spdk_get_thread();
device_qp->chan = chan;
break;
}
}
@ -808,8 +807,7 @@ static void
compress_destroy_cb(void *io_device, void *ctx_buf)
{
struct compress_io_channel *chan = ctx_buf;
struct comp_device_qp *device_qp;
struct spdk_thread *thread = spdk_get_thread();
struct comp_device_qp *device_qp = chan->device_qp;
spdk_free(chan->src_mbufs);
spdk_free(chan->dst_mbufs);
@ -817,15 +815,8 @@ compress_destroy_cb(void *io_device, void *ctx_buf)
spdk_poller_unregister(&chan->poller);
pthread_mutex_lock(&g_comp_device_qp_lock);
TAILQ_FOREACH(device_qp, &g_comp_device_qp, link) {
if (strcmp(device_qp->device->cdev_info.driver_name, chan->drv_name) == 0) {
if (device_qp->thread == thread) {
chan->device_qp = NULL;
device_qp->thread = NULL;
break;
}
}
}
chan->device_qp = NULL;
device_qp->chan = NULL;
pthread_mutex_unlock(&g_comp_device_qp_lock);
}
@ -875,17 +866,13 @@ accel_dpdk_compressdev_enable(void)
spdk_accel_module_list_add(&g_compress_module);
}
/* Callback for unregistering the IO device. */
static void
accel_compress_exit(void *ctx)
_device_unregister_cb(void *io_device)
{
struct comp_device_qp *dev_qp;
struct compress_dev *device;
if (g_compressdev_initialized) {
spdk_io_device_unregister(&g_compress_module, NULL);
g_compressdev_initialized = false;
}
while ((device = TAILQ_FIRST(&g_compress_devs))) {
TAILQ_REMOVE(&g_compress_devs, device, link);
free(device);
@ -903,3 +890,14 @@ accel_compress_exit(void *ctx)
spdk_accel_module_finish();
}
static void
accel_compress_exit(void *ctx)
{
if (g_compressdev_initialized) {
spdk_io_device_unregister(&g_compress_module, _device_unregister_cb);
g_compressdev_initialized = false;
} else {
spdk_accel_module_finish();
}
}